XBOIDS
An X Window Simulation of a Flock of Flying Animals

XBOIDS is a C program which simulates the behavior of a flock of flying animals, called "boids", written by Conrad Parker.

The behavior of the flock is displayed using the X Window graphics display system.

XBOIDS is derived from the boids program written by Craig Reynolds.

The original version of the source code is available at http://www.kfish/org/boids .

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

XBOIDS is available in a C version.

Related Data and Programs:

FOREST_FIRE_SIMULATION, a C program which models the occurrence of fires in a forest, and displays the status of the forest using X Windows, by Michael Creutz.

XISING, a C program which simulates the variation in ferromagnetism in a material, displaying the results using X Windows.

XWAVES, a C program which simulates the behavior of solution of certain forms of the wave equation, displaying the results using X Windows.

Author:

Conrad Parker

Reference:

• Brian Hayes,
  Flights of Fancy,
  American Scientist,
  Volume 99, Number 1, January-February 2011, pages 10-14.
• Craig Reynolds,
  Flocks, Herds, and Schools: A Distributed Behavioral Model,
  SIGGRAPH '87 Proceedings,
  Computer Graphics, 21(4) 1987, pages 25-34.

Source code:

• Makefile a makefile;
• xboids.sh BASH commands to compile, link and load the source code;
• boid.c, functions to control the boids;
• boid.h, the include file;
• main.c, the main program;
• vec.c, vector operations;
• vec.h, the include file;
• x.c, X window operations;
• xboids.c, the source code;

Examples and Tests:

• xboids.png a PNG snapshot of the screen.

You can go up one level to the C source codes.